Bearing for centrifugal pumps.



A. e. PAULSMEIER. BEARING FOR GENTRIFUGAL PUMPS. APPLICATION TILED NOV.9, 1911.

Patented July 7, 1914.

ifizeazea UNITED STATES PATENT ormon.

ALBERT Q PAULSMEIER, OF ALAMEDA, CALIFORNIA, ASSIGNOIR TO BYRON JACKSON IRON WORKS, OF WEST BERKELEY, QALIFORN IA, A CORPORATION OF CALIFORNIA.

BEARING FOR CENTRIFUGAL PUMPS.

Specification of Letters Patent.

To all whom it may concern Be it known that I, ALBERT O. PAULs- MEIER, citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements in Bearings for Centrifugal Pumps, of which the following is a specification. I

This invention relates to centrifu al pumps and pertains especially to means for providing a suitable bearing or bearings for the impeller shaft, and at the same time have the bearings adapted to cooperate with a specially designed stuffing box so as to ren- .der the pump water sealed or sealed against leakage from the casing which incloses the impelleryalso to avoid the use of separate packing'glands, yet having the stufling box distinct and separate from the shaft bearing; and also to simplify construction.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed having reference to the accompanying drawings, in which the figure is a longitudinal section of my improved pump.

A is a pump case inclosing the impeller 2.

3 is'a suction inlet; and 4 the volute of the case into which the impeller discharges; and 5 is the connection for the discharge pipe. 6 is the impeller shaft which in practice is usually operated about 1200 R. P. M.

The present invention resides especially in the means for mounting the shaft and insulating the pump against leakage from the interior of the case around the shaft.

7 shows a ring oiling bearing for the shaft on that side of-the case toward the application. of power, and 8 is a ring oiling bearing for the outer end of the shaft adjacent the suction, Each bearing has a ring 9 dipping in the oil reservoir and hanging loose on the" shaft; the babbitt 10 of the bearing 7 being' cut away on top as shown at 11 and the sleeve gland 12 of the bearing 8- being out away on top as shown at 13 so that in each case the ring comes in contact with the shaft.

14 is a removable cap by which each hear w oil and access had to its interior.

The bearing 7 is made removable from the ump case and movable along the length of the shaft 6 to enable an annular tail or:

' ing end projection 15 to telescope gland fashion from the. pocket or box 16. In practical construction the cover ofthe case is extended to form a guide flange 20 for the box 7 to be moved back and forth in; the box 7 having an annular flange 21 fitting within-the, guide flange 20. I

22 is a guide pin in flange 21 fitting a slot 23 in flange 20 for the purpose of pre- Venting the bearing 7 from turning. The main body of the bearing 7 is made eccentric and dependent below the shaft 6, so as to hold a quantity of oil. The bolts 19 are secured in the cover of the pump case and project through suitable perforations in the flange or web 21. On the other side of the pump case the bearing is provided with a similar gland and packing means so as to provide a tight joint and exclude the water Patented July '7, 1914. application filed November 9, 1911. Serial No. 659,358.

24 is a pet cock for the pressure drain fromthe bearings, the slight difl'erence in construction between the two bearings 7- and 8 being mainly due to their positions in the pump. In the case of the bearing 8 a sleeve 12"is used which slips over the end of the shaft 6 and supports the shaft in the bearing .8- in the proper fashion and at the same time the sleeve 12 is prolonged so as to project into a gland pocket or vbox 16 and compress the packing therein; the compression being regulated from time to time by suitable means as a set screw 19' and lock nut 18. Sleeve 12 is prevented from turning by means of a guide p n 22 working in a slot 23 formed in a fixed part of the pump.

The chief advantage of the use of a ring oiling bearing with 'a tail end serving as a gland to the stufling box avoids separate glands, renders the pump sealed against leal age from the pump case lnto thebeart, a veryumportant feature, and simplifies construction to a considerable extent. In the case of repairs or replacements, the bearings are easily gotten at and ad uStments are easily made. Furthermore, the oil is directly carried from the "011 cups from the bearings into the packing glands, thereby rendering the device self-oiling. 1

Having thus described my invention, what I claim and desire to secure by Letters Patent isv V 1. The combination with a shaft, of a bearing, a machine casing through which said shaft extends, an annular pro ection on said casing forming a pocket surrounding the shaft, an'oil casing surrounding. the

bearing, a projection on said bearing formin a gland and fitting in said pocket,-"a circu ar seat on said bearing, a guide flange for said seat, a guideway in said flange, a pin carried by the bearing and sliding 1n said uideway, and means for sliding said bear- 1ng longitudinally upon the shaft.

2. The combination with a shaft, of a. bearing, a machine casing through which said shaftextends, an annular projection forming a pocket surrounding said shaft,

ALBERT O. EAULSLLEIER.

- Witnesses:

F. S. HOFFMANN, R. N. Form. 

